It's going to be "interesting" going forward to see how the resolutely anti-Semitic right and resolutely pro-Israel right (and all the righties in between) deal with each other in the future, because if the shooter being a groyper turns out to be true then it could indicate an instance of the former actively engaging in violence (a universally agreed on tactic by the far right; less an answer and more of a question, to which the answer is usually 'yes') on the latter, and thus an escalation of aggression between the two camps. So, humor me, if you will.
We've already seen vague fractures, like Marjorie Taylor Greene laughably starting to feign outrage against the genocide in Gaza (no way she gives a shit about Palestinians, IMO), and Nick Fuentes, but things might be heating up and more and more Republicans will start coming out, tooting the anti-Israel horn; even people you wouldn't think of, as their base and they themselves start asking "hey, wait a minute, why should we be giving our stuff to Israel? We hate them". Make no mistake, the political power right now is in the hand of the pro-Israel side in both parties, and it's where all the money is (that's why the US is involved with Israel - capital), but the anti-semitic right is never going away, and is one of the USA's most important assets on the home front, since it appeals to the blue collar bigot and the loyalist camp - ie, white collar bigots - far more than the pro-Israel stance does, especially when the seams start showing. And as soon as the Gaza incursion reaches its conclusion (which, hopefully for the whole world, will be an ultimate failure on the US and Israel's part), the anti-semitic right is going to be gunning - figuratively speaking? - hard for the pro-Israeli elements in the US government, having either outlived some of their usefulness to the power structure or failed to achieve what they wanted.
But the pro-Israeli element is going to stand firm: they, like the anti-semites, are full believers in their cause, and they have their hands firmly around the throat of the majority of major American institutions, and the veneer of respectability. They'll weed out the opportunists in their ranks, when things start to go south, and render them politically impotent, or worse, and double down. Meanwhile, the relatively powerless anti-racist elements of the USA would be caught between two camps whom they despise and who despise them. All this malarkey about a "civil war" from Republicans is just that, I think we can all agree. But I think the real future of political violence in the states, perhaps within five years time, will partially revolve around escalating terrorist violence between loyalists and Zionists, and anti-racist elements (despising and despised by both, as they despise eachother) being caught in between, having no formal power and just being comprised of members of the beleaguered populace. Who, by the way, are already subject to state and individual political violence; it's just going to get worse.
Of course, there are other factors at play. What of the actions of Israel itself, who would certainly conduct terror attacks in the states if pressed? And what of rising tensions with Russia, China, and the nations to the south of the US border? What if Trump does something out of pocket that re-contextualizes everything? But Israel is, right now, THE big cultural swing-issue in the USA for how essential it is to contemporary foreign and domestic policy, yet how anathema it is on the face of things to the spirit of the "America First" patriotism needed to keep the whole thing afloat.
Long story short: I think people may be overlooking how much of a schism that the matter of Israel is causing in the American far right (certainly more than in the Democrat party), it may have played a role in recent pain-in-the-neck events, and it could come to even greater bloodshed and it's gonna suck for the average person regardless.
No, Homer. Let's do it. Let's call DOOM Service!